I've been thinking; how about putting Herobrine back in and making him a boss like the Ender Dragon. He would probably be somewhere in the nether ruling the Pig zombies i guess...until you beat Herobrine random stuff that Herobrine use to do when he still was in the game will generate occasionally in your world. Herobrine will only appear in the nether when you have beaten the Ender Dragon. Herobrine could have about twice as much health as the Ender Dragon, and drop as twice as much xp; he would do like 5 hearts of damage to you if you had no armor on. Well that is all the ideas I have so far I hope someone can add more.
I want to take the damn herobrine rumour and bury it in a ditch, cover it in oil and burn the damn thing. Getting tiresome hearing the damn rumour.....
If anyone wants to port/remake this, feel free to do that! Or don't. It's up to you, really.